1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.options; 24 25 import java.util.EnumSet; 26 27 public class EnumOptionValue<T extends Enum<T>> extends OptionValue<T> { 28 final Class<T> enumClass; 29 30 @SuppressWarnings("unchecked") 31 public EnumOptionValue(T value) { 32 super(value); 33 if (value == null) { 34 throw new IllegalArgumentException("Value must not be null"); 35 } 36 this.enumClass = (Class<T>) value.getClass(); 37 } 38 39 /** 40 * 41 * @return the set of possible values for this option. 42 */ 43 public EnumSet<T> getOptionValues() { 44 return EnumSet.allOf(enumClass); 45 } 46 47 @Override 48 public void setValue(Object v) { 49 try { 50 super.setValue(Enum.valueOf(enumClass, (String) v)); 51 } catch (IllegalArgumentException e) { 52 throw new IllegalArgumentException("\"" + v + "\" is not a valid option for " + getName() + ". Valid values are " + EnumSet.allOf(enumClass)); 53 } 54 } 55 }